Passing this along. One of several reasons there are so few of these IFS overland rigs is the front CVs are a weak link. Below is a cut sheet from NAPA, which now carries the CV shafts Trakmotive used to offer (briefly). I'm running a pair now in my 2001 Tahoe, and have one less thing to worry about.
View attachment 195727
Other weak links have also been addressed, such as ditching the front torsion bars for Atomic Fabrication coil overs, replacing the front plastic brush guard with a thick diamond plate skid (fabricated), moog heavy duty rear springs and full auto ride delete, and so on.
Still to address- serpentine does not like water of any kind, or the belt squeal from the water pump immediately starts, the horns need to be relocated as water takes them out as well, and dust constantly clogs the air injection system inlet and evap purge valve.
My opinion is GM is catering to the money, which is high optioned driveway queen 4x4s. To make these rigs work day after day in harsh environments it takes work....